Backup Server Options in Clouds Using Incremental Backups
The table below compares the backup server performance in the cloud using incremental backups. The information is provided for the following configurations:
- The cloud with dedicated backup server with local storage
- The cloud with dedicated backup server with NFS attached storage
- The cloud with NFS share attached to hypervisors
| Dedicated Backup Server with Local Storage | Dedicated backup Server with NFS attached storage (NOT SUPPORTED) | NFS share attached to HVs (NOT SUPPORTED) | |
| Backup Performance | +++ | ++ | ++ |
| Low CPU load on HV | +++ | +++ | - |
| Low RAM usage on HV | +++ | +++ | - |
| Backup Load Balancing | +++ | ++** | - |
| Provisioning performance | +++ | ++** | + |
| Provisioning Load Balancing | +++ | ++** | - |
| Support ACLs | +++ | ++* | ++* |
| Support Xattrs | +++ | - | - |
| Ease of backup configuration | +++ | +++ | ++ |
| Ease of provisioning configuration | ++ | ++ | ++ |
| Scalable horizontally | +++ | ++** | - |
| General Notes: | Has best performance for backups and provisioning, lowest CPU andf RAM usage on HV, load balancing is possible for backups and provisioning, ACLs and Xattrs both supported. | Has moderate backup performance, but lower CPU and RAM usage on HV, proper load balancing depends on NFS configuration, ACL support depends on NFS server vendor/model, Xattrs support is not available. | Has lowest performance and highest CPU and RAM usage on HV, no load balancing (for both backups and provisioning), ACL support depends on NFS vendor/model, Xattrs support is not available. |
| Recommended for: | Clouds of all sizes. | Medium sized, small clouds. | Small clouds. |
| Legend: | |||
| +++ | very good | ||
| ++ | good | ||
| + | works | ||
| - | not supported | ||
| Footnotes: | |||
| * | ACL support depends on type, brand, vendor of NFS Server. | ||
| ** | Limited due to shared NFS storage |
Dedicated backup server
Dedicated backup server with NFS
Hypervisor with NFS
